Recent results from experiment 814 at Brookhaven

J. Barrette, R. Bellwied, P. Braun-Munzinger, W. E. Cleland, T. M. Cormier, G. David, J. Dee, G. E. Diebold, O. Dietzsch, M. Fatyga, D. Fox, J. V. Germani, M. Ghalambor-Dezfuli, S. Gilbert, S. V. Greene, J. R. Hall, T. K. Hemmick, N. Herrmann, B. Hong, G. IngoldK. Jayananda, D. Kraus, B. Shiva Kumar, R. Lacasse, D. Lissauer, W. J. Llope, T. W. Ludlam, S. McCorkle, R. Majka, S. K. Mark, J. T. Mitchell, M. Muthuswamy, E. O'Brien, V. Polychronakos, C. Pruneau, F. Rotondo, J. Sandweiss, N. C. daSilva, J. Simon-Gillo, U. Sonnadara, J. Stachel, H. Takai, E. M. Takagui, T. G. Throwe, C. Winter, G. Wang, L. Waters, K. Wolf, D. Wolfe, C. L. Woody, N. Xu, Y. Zhang, Z. Zhang, C. Zou

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Abstract

Recent results from the E814 collaboration are presented for reactions of 14.6 GeV/nucleon 28Si projectiles with targets of Al, Cu, and Pb. This includes transverse energy distributions over the full solid angle and the distribution of charged particle multiplicity in the forward hemisphere. Furthermore we present recent results on transverse momentum spectra and rapidity distributions for protons and discuss them in terms of stopping and/or transparency. A fraction of nucleons emerges at beam rapidity, even for the most central collisions. These 'punch-through' distributions are shown to yield information on the in-medium nucleon-nucleon cross section. Finally, we discuss antiproton production at 0° as a function of event centrality to shed some light on possible reabsorption.

Original languageEnglish
Pages (from-to)137-152
Number of pages16
JournalNuclear Physics, Section A
Volume544
Issue number1-2
DOIs
Publication statusPublished - 1992 Jul 20

ASJC Scopus subject areas

  • Nuclear and High Energy Physics

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    Barrette, J., Bellwied, R., Braun-Munzinger, P., Cleland, W. E., Cormier, T. M., David, G., Dee, J., Diebold, G. E., Dietzsch, O., Fatyga, M., Fox, D., Germani, J. V., Ghalambor-Dezfuli, M., Gilbert, S., Greene, S. V., Hall, J. R., Hemmick, T. K., Herrmann, N., Hong, B., ... Zou, C. (1992). Recent results from experiment 814 at Brookhaven. Nuclear Physics, Section A, 544(1-2), 137-152. https://doi.org/10.1016/0375-9474(92)90570-A